Raw material vertical mill with multi-layer millstone structure

Abstract

The utility model discloses a raw material vertical mill with a multi-layer millstone structure, and belongs to the technical field of vertical mills. Comprising an upper-layer grinding structure, a lower-layer grinding structure, a lower-layer supporting column, an upper-layer supporting column, a cooling liquid inlet and outlet pipe opening, a motor power line, a lower grinding structure feeding opening, a feeding opening, an upper grinding roller, a lower grinding roller, a partition wall, a lower grinding roller rotating sliding rail, a supporting column, a rotating motor, a remote control module, a cooling liquid circulating rail and a discharging opening. By arranging the upper-layer grinding structure and the lower-layer grinding structure, multiple times of grinding of multiple layers of grinding discs can be achieved, meanwhile, a cooling liquid inlet and outlet pipe opening and a cooling liquid circulation track are arranged, cooling liquid can be introduced into the cooling liquid inlet and outlet pipe opening and the cooling liquid circulation track, the internal temperature is prevented from being too high, and meanwhile a remote control module is arranged on the side face of a rotating motor and can remotely control a motor switch.

Description

Technical Field

[0001] This utility model belongs to the technical field of vertical mills, specifically relating to a raw material vertical mill with a multi-layer grinding disc structure. Background Technology

[0002] Vertical roller mills, widely used in industries such as cement and building materials, work by utilizing the pressure and friction between grinding rollers and a grinding disc to grind materials. However, traditional vertical roller mills typically have only a single grinding layer, failing to fully utilize space and resulting in large equipment size and high energy consumption. Furthermore, during prolonged continuous operation, high temperatures can easily accumulate inside the vertical roller mill, affecting its efficiency and lifespan. Temperature control is particularly crucial when grinding temperature-sensitive materials.

[0003] An existing automatic feeding vertical mill (publication number: CN210545449U) for the production and processing of titanium oxychloride generally suffers from the following problems during use:

[0004] 1. Single Grinding Structure: Low Grinding Efficiency: Vertical mills with a single grinding structure typically grind materials only in a single pass, which may lead to incomplete grinding, especially for materials with high hardness or large particles, resulting in poor grinding effects. To achieve the desired fineness, repeated grinding may be necessary, thus reducing the overall grinding efficiency. Therefore, there is an urgent need for a raw material vertical mill with a multi-layer grinding disc structure.

[0005] 2. Lack of internal cooling structure: Equipment overheating: During prolonged operation, the high-pressure friction between the grinding rollers and the grinding disc generates a significant amount of heat. Without an effective cooling structure, this heat will accumulate, causing the internal temperature of the equipment to rise. Excessive temperature can lead to equipment malfunctions and may even damage the motor and other critical components. Therefore, there is an urgent need for a raw material vertical mill with an internal cooling structure.

[0006] 3. The internal rotary motor cannot be remotely switched on / off: Inconvenient operation: Operators must manually control the rotary motor on / off on-site, which not only increases the complexity of operation but may also lead to a decrease in work efficiency. Especially when frequent motor starts and stops are required, the cumbersomeness and time cost of manual operation will increase significantly, so there is an urgent need for a raw material vertical mill with remote switching capability. Utility Model Content

[0007] The main objective of this invention is to provide a vertical mill for raw materials with a multi-layer grinding disc structure, which can effectively solve the problems in the background art.

[0008] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a multi-layer grinding disc vertical mill for raw materials, comprising an upper grinding structure and a lower grinding structure, wherein the upper grinding structure has a feed inlet at its upper end, the lower grinding structure is provided at its lower end, the lower grinding structure has a discharge outlet at its lower end, a lower support column is provided at the lower side of the lower grinding structure, an upper support column is provided at the lower side of the upper grinding structure, the lower end of the upper support column is connected to the lower grinding structure, an upper grinding roller is provided at the upper end inside the upper grinding structure, a lower grinding roller is provided at the lower end of the upper grinding roller, a rotary motor is provided at the lower end of the lower grinding roller, and a remote control module is provided on the side of the rotary motor.

[0009] Furthermore, a lower grinding roller rotating slide rail is provided around the lower end of the lower grinding roller, and the other end of the lower grinding roller rotating slide rail is connected to the partition wall.

[0010] Furthermore, a support column is provided on the back of the partition wall, and the other end of the support column is fixed to the inner wall of the upper grinding structure.

[0011] Furthermore, the remote control module has a motor power cable on its front side, which extends beyond the upper grinding structure.

[0012] Furthermore, a coolant flow track is provided inside the upper grinding roller, and a coolant inlet / outlet is provided at the outer end of the coolant flow track. The coolant inlet / outlet is located on the side of the upper grinding structure.

[0013] Furthermore, the lower grinding structure and the upper grinding structure have the same internal structure, and the discharge port at the lower end of the upper grinding structure is connected to the feed port of the lower grinding structure.

[0014] This utility model has the following beneficial effects:

[0015] 1. By setting up upper and lower grinding structures, multiple grinding processes can be achieved using multi-layer grinding discs, bringing the following benefits: Improved grinding efficiency: The multi-layer grinding structure allows materials to be processed multiple times as they pass through the upper and lower grinding layers. Each grinding structure can further refine and pulverize the material, thus significantly improving overall grinding efficiency. In the same amount of time, the multi-layer structure can process more material or achieve a higher grinding fineness. Enhanced grinding effect: The multi-layer grinding disc design allows materials to be subjected to different pressures and shear forces on different grinding discs, which helps to achieve more uniform and thorough grinding. Materials of different hardness or particle size can be gradually ground into finer and more uniform particles under the action of multiple grinding discs, improving the quality and consistency of the final product.

[0016] 2. By setting up coolant inlet and outlet pipes and a coolant flow path, coolant can be circulated within the system to prevent excessive internal temperature, offering the following benefits: Effective temperature control: The coolant system quickly dissipates the heat generated by the grinding rollers and grinding discs during the grinding process, preventing the internal temperature of the equipment from becoming too high. Proper temperature control prevents performance degradation, material softening, or deterioration caused by overheating, ensuring the equipment operates at optimal temperatures and improving grinding efficiency and product quality. Extended equipment lifespan: Excessive temperature accelerates the wear of critical components such as grinding rollers and grinding discs. With the continuous action of the coolant, the temperature of these components is effectively controlled, reducing material fatigue and damage caused by thermal stress, thereby extending the equipment's lifespan and lowering maintenance costs.

[0017] 3. By installing a remote control module on the side of the rotary motor, the motor can be remotely controlled, offering the following benefits: Improved ease of operation: Operators can easily start or stop the rotary motor from the control room or any remote location using the remote control module, without needing to physically go to the equipment site. This greatly simplifies the operation process, improves work efficiency, and saves significant time and labor costs, especially in large production lines. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a side sectional view of the present invention. Figure 1 ;

[0020] Figure 3 This is a side sectional view of the present invention. Figure 2 ;

[0021] Figure 4 This is a front sectional view of the present invention;

[0022] In the diagram: 1. Upper grinding structure; 2. Lower grinding structure; 3. Lower support column; 4. Upper support column; 5. Coolant inlet / outlet pipe; 6. Motor power cord; 7. Lower grinding structure feed inlet; 8. Feed inlet; 9. Upper grinding roller; 10. Lower grinding roller; 11. Partition wall; 12. Lower grinding roller rotary slide rail; 13. Support column; 14. Rotary motor; 15. Remote control module; 16. Coolant flow track; 17. Discharge port. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] Those skilled in the art should connect all electrical components in this case to their compatible power supplies via wires, and should select appropriate controllers according to actual conditions to meet control requirements. The specific connection and control sequence should refer to the working principle described below, where the electrical components are connected in sequence. The detailed connection methods are well-known in the art. The following mainly introduces the working principle and process, and will not describe the electrical control further.

[0027] Example

[0028] Please see Figure 1-4 This utility model provides a technical solution:

[0029] In this embodiment, an upper grinding structure 1 and a lower grinding structure 2 are included. The upper grinding structure 1 has a feed inlet 8 at its upper end, and the lower grinding structure 2 is located at the lower end of the upper grinding structure 1. The lower grinding structure 2 has a discharge outlet 17 at its lower end. The lower grinding structure 2 has a lower support column 3 at its lower side, and the upper grinding structure 1 has an upper support column 4 at its lower side. The lower end of the upper support column 4 is connected to the lower grinding structure 2. The upper grinding structure 1 has an upper grinding roller 9 at its upper internal end, and a lower grinding roller 10 at its lower end. The lower grinding roller 10 has a rotary motor 14 at its lower end, and a remote control module 15 is located on the side of the rotary motor 14. In the above configuration, the rotary motor 14 is a Siemens SIMOTICS FD, which has high efficiency, reliability, and durability. The motor can be customized as needed, is suitable for various environmental conditions, and supports remote monitoring and control. In the above configuration, the remote control module 15 adopts Siemens' SIMATIC S7-1200, which has powerful communication and remote control functions, supports multiple communication protocols such as PROFINET and Profibus, and is suitable for various industrial automation applications.

[0030] In this embodiment, a lower grinding roller rotating slide rail 12 is provided around the lower end of the lower grinding roller 10, and the other end of the lower grinding roller rotating slide rail 12 is connected to the partition wall 11.

[0031] In this embodiment, a support column 13 is provided on the back of the partition wall 11, and the other end of the support column 13 is fixed to the inner wall of the upper grinding structure 1.

[0032] In this embodiment, the remote control module 15 is provided with a motor power line 6 on the front, and the motor power line 6 extends beyond the upper grinding structure 1.

[0033] In this embodiment, a coolant flow track 16 is provided inside the upper grinding roller 9, and a coolant inlet / outlet pipe 5 is provided at the outer end of the coolant flow track 16. The coolant inlet / outlet pipe 5 is located on the side of the upper grinding structure 1.

[0034] In this embodiment, the lower grinding structure 2 and the upper grinding structure 1 have the same internal structure, and the discharge port 17 at the lower end of the upper grinding structure 1 is connected to the feed port 7 of the lower grinding structure.

[0035] Features Before improvement Improved Grinding structure Single-layer grinding structure results in low grinding efficiency and insufficient material refinement. The multi-layer grinding structure improves grinding efficiency, allowing materials to undergo multiple processing steps for more thorough refining and pulverization. Temperature control Without a coolant system, the internal temperature of the equipment is prone to overheating, which affects the grinding effect and the lifespan of the equipment. The system is equipped with coolant inlet and outlet pipes and a flow path, allowing the coolant to carry away heat, preventing overheating, ensuring the equipment operates at its optimal temperature, and extending its lifespan. Ease of use The motor switch needs to be operated manually, which is inconvenient and has a slow response time. The rotary motor has a remote control module installed on its side, making it easy to operate. It can remotely start or stop the motor with a rapid response, improving production efficiency.

[0036] This embodiment relates to a vertical mill for raw materials, which includes an upper grinding structure and a lower grinding structure. The upper grinding structure has a feed inlet at its upper end, through which material enters the equipment. The lower end of the upper grinding structure is connected to the lower grinding structure, through which material enters for further processing after being ground in the upper grinding structure. The lower grinding structure has a discharge outlet at its lower end, through which the material, after being ground in both layers, is discharged.

[0037] The lower grinding structure is supported at its bottom by support columns, and the upper grinding structure is also connected to the lower grinding structure via support columns, making the overall structure more stable. An upper grinding roller is installed at the upper part of the interior of the upper grinding structure, with a lower grinding roller located below it. The lower grinding roller is driven by a rotary motor located at its lower end to achieve the crushing and grinding of materials. A remote control module is installed on one side of the rotary motor, allowing operators to remotely start and stop the motor, thereby improving operational convenience and production efficiency.

[0038] The rotary motor used in this embodiment is a Siemens SIMOTICS FD motor, known for its high efficiency, reliability, and durability. It is suitable for various industrial environments and supports remote monitoring and control. Furthermore, the remote control module uses a Siemens SIMATIC S7-1200 controller, which possesses powerful communication and remote control capabilities, supports multiple industrial communication protocols such as PROFINET and Profibus, and can meet the needs of various industrial automation applications.

[0039] The lower grinding roller is also equipped with a rotating slide rail around its perimeter to assist in its stable operation. The other end of the rotating slide rail is connected to the partition wall inside the equipment. A support column is installed on the back of the partition wall, and the other end of the support column is fixed to the inner wall of the upper grinding structure to further enhance the structural stability of the equipment.

[0040] The upper grinding roller has a coolant circulation track inside, through which the coolant circulates within the roller to carry away the heat generated during the grinding process and prevent the internal temperature of the equipment from becoming too high. The coolant enters and exits through coolant inlet and outlet pipes located on the side of the upper grinding structure.

[0041] The lower and upper grinding structures have the same internal design. Together, they form a multi-layer grinding structure, allowing materials to undergo multiple grinding processes, which greatly improves grinding efficiency and product quality.

[0042] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A vertical mill for raw materials with a multi-layer grinding disc structure, comprising an upper grinding structure (1) and a lower grinding structure (2), characterized in that: The upper grinding structure (1) has an upper feed inlet (8), a lower grinding structure (2) is provided at the lower end of the upper grinding structure (1), a discharge outlet (17) is provided at the lower end of the lower grinding structure (2), a lower support column (3) is provided at the lower side of the lower grinding structure (2), an upper support column (4) is provided at the lower side of the upper grinding structure (1), the lower end of the upper support column (4) is connected to the lower grinding structure (2), an upper grinding roller (9) is provided at the upper inside of the upper grinding structure (1), a lower grinding roller (10) is provided at the lower end of the upper grinding roller (9), a rotary motor (14) is provided at the lower end of the lower grinding roller (10), and a remote control module (15) is provided on the side of the rotary motor (14).

2. The raw material vertical mill with a multi-layer grinding disc structure according to claim 1, characterized in that: The lower grinding roller (10) is provided with a lower grinding roller rotating slide rail (12) around its lower end, and the other end of the lower grinding roller rotating slide rail (12) is connected to the partition wall (11).

3. A vertical mill for raw materials with a multi-layer grinding disc structure according to claim 2, characterized in that: The partition wall (11) has a support column (13) on its back side, and the other end of the support column (13) is fixed to the inner wall of the upper grinding structure (1).

4. A vertical mill for raw materials with a multi-layer grinding disc structure according to claim 1, characterized in that: The remote control module (15) has a motor power line (6) on its front side, which extends beyond the upper grinding structure (1).

5. A vertical mill for raw materials with a multi-layer grinding disc structure according to claim 1, characterized in that: The upper grinding roller (9) is provided with a coolant flow track (16) inside, and a coolant inlet / outlet pipe (5) is provided at the outer end of the coolant flow track (16). The coolant inlet / outlet pipe (5) is located on the side of the upper grinding structure (1).

6. A vertical mill for raw materials with a multi-layer grinding disc structure according to claim 1, characterized in that: The lower grinding structure (2) and the upper grinding structure (1) have the same internal structure. The discharge port (17) at the lower end of the upper grinding structure (1) is connected to the feed port (7) of the lower grinding structure.

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